# flake8: noqa

import os.path as osp

import numpy as np

here = osp.dirname(osp.abspath(__file__))


def voc():
    data_file = osp.join(here, "data.npz")
    data = dict(np.load(data_file))

    # compose masks to class label image
    class_label = np.full(data["rgb"].shape[:2], 0, dtype=np.int32)
    for l, mask in zip(data["labels"], data["masks"]):
        class_label[mask == 1] = l
    data["class_label"] = class_label

    names_file = osp.join(here, "class_names.txt")
    with open(names_file) as f:
        class_names = [name.strip() for name in f]
    data["class_names"] = class_names

    return data